In this exercise, you will build a Golang service that gathers new delegations made on the Tezos protocol and exposes them through a public API.

The solution is composed of two parts:

• It must poll delegations:

  • It must continuously poll new delegations from this tzkt API endpoint: https://api.tzkt.io/#operation/Operations_GetDelegations
  • For each delegation, save the following information: sender's address, timestamp, amount, and block height.
  • The data aggregation must store the delegations data in a persistent store of your choice.
  • Indexing historical data is a bonus.

• It must expose the collected data through a public API endpoint:

  • The endpoint must be available at: GET /xtz/delegations
  • The API must read data from the store.
  • The response format must be:

  {
    "data": [ 
      {
          "timestamp": "2022-05-05T06:29:14Z",
          "amount": "125896",
          "delegator": "tz1a1SAaXRt9yoGMx29rh9FsBF4UzmvojdTL",
          "level": "2338084"
      },
      {
          "timestamp": "2021-05-07T14:48:07Z",
          "amount": "9856354",
          "delegator": "KT1JejNYjmQYh8yw95u5kfQDRuxJcaUPjUnf",
          "level": "1461334"
      }
    ],
  }

• The sender’s address is the delegator.

• The delegations must be listed most recent first.

• The endpoint takes one optional query parameter year, which is specified in the format YYYY and will result in the data being filtered for that year only.

• The code must be tested.
• How to run the solution locally must be simple and documented.
• The solution must thrive to be simple while fulfilling all the requirements.

Please share a archive ( zip , tar or equivalent) of your git project via email.